April, 2026 - csen2025.org

Dijkstra and its assumptions with negative edges.

Dr. Ingrid Falk-Weller
April 4, 2026
(0)
Algorithms

One Negative Edge Breaks the Whole Guarantee

I remember sitting in a windowless server room during my second year in industry, staring at a routing table that made absolutely no sense. We were chasing a phantom bug for three days, assuming our shortest-path logic was flawless, only…

Logistic regression explained: predicting probability.

Dr. Ingrid Falk-Weller
April 3, 2026
(0)
Machine Learning

Predicting Probability, Not Category

I remember sitting in a windowless graduate lab five years ago, staring at a textbook that tried to explain logistic regression through a dense thicket of calculus and abstract probability distributions. It felt like the author was trying to hide…